Recent events require the telling of an old tale.

A Rabbi gathered together his students and asked them: “How do we know the exact moment when night ends and day begins?” 

“It’s when, standing some way away, you can tell a sheep from a dog,” said one boy.

The Rabbi was not content with the answer.

Another student said: “No, it’s when, standing some way away, you can tell an olive tree from a fig tree.”

“No, that’s not a good definition either.”

“Well, what’s the right answer?” asked the boys.

And the Rabbi said: “When a stranger approaches, and we think he is our brother, that is the moment when night ends and day begins.”  

Author Unknown